Peculiarities of physical modeling of hydrodynamics of flow in conical slide bearings




lubrication systems, conical clearance, torque, rotating cone


Studying of hydrodynamics flow in conical friction bearings is one of the actual tasks in mechanical engineering. Such kinds of bearings are used as support devices and have been widely used in a number of mechanical and hydraulic systems, particularly in turbines, hydraulic drive systems and in the automotive industry. The feature of such kind of bearings is that they have more complex construction than cylindrical ones. Also hydrodynamics of the flow inside these devices has not been fully studied. Unfortunately, theoretical studies of such problems are not complete at present time and the results of such studies do not always coincide with the experimental data. Considering this, it becomes necessary to carry out experimental studies to obtain friction torque dependencies in a conical sliding bearing and the magnitudes affecting it, for example, the thickness of the grease layer, the rheological characteristics of the grease and the curvature of the surface. This work is devoted to the physical modeling of friction conical bearings with taking into account the rheological properties of grease.

Author Biography

O. Koval, Igor Sikorsky Kyiv Polytechnic Institute, Kyiv

Механіко-машинобудівний інститут,  каф. ПГМ , аспірант


  1. Voskresenskij, V.A. and V.I. D'jakov (1980), Raschjot i proektirovanie opor skol'zhenija (zhidkostnaja smazka) [Calculation and design of sliding bearings (liquid lubricant)], Mashinostroenie, Moscow, Russia.
  2. Belkin, I.M., Vinogradov, G.V. and Leonov, A.I. (1968), Rotacionnye pribory. Izmerenie vjazkosti i fiziko - mehanicheskih harakteristik materialov [Rotary power devices. Measurement of viscosity and physical - mechanical characteristics], (ed.) Vinogradova, G.V., Mashinostroenie, Moscow, Russia.
  3. Li, X.K., Gwynllyw, D.Rh., Davies, A.R. and Phillips, T.N. (2000), “On the influence of lubricant on dynamics of two-dimensional journal bearings”, J. Non-Newtonian Fluid Mech, Vol. 93, PP. 29-59.
  4. Paranjpe, R.S. (1992), “Analysis of Non-Newtonian Effects in Dynamically Loaded Finite Journal Bearings Including Mass Conserving Cavitation”, Trans ASME Jour of Trib, Vol. 114, no. 4. PP. 736-746, doi:10.1115/1.2920943
  5. Gecim, B.A. (1990), “Non-Newtonian Effect of Multigrade Oils on Journal Bearing Perfomance”, Tribology Transaction, Vol. 3, PP. 384-394,
  6. Garg, H.С. Kumar, V. and Sharda, H.B. (2009), “Thermohydrostatic analysis of capillary compensated symmetric hole-entry hybrid journal bearing operating with non-Newtonian lubricant”, Industrial Lubrication and Tribology, Vol. 61, no l, PP. 11-21.
  7. Targ, S.M. (1951), Osnovnye zadachi teorii laminarnyh techenij [The main tasks of the theory of laminar flow], Gostehteorizdat, Leningrad, Moscow, Russia.
  8. Gukhman, А.А. (1973), Introduction To the Theory of Similarity, 2 nd, Vysshaya shkola, Moscow, Russia.
  9. Koval, O. Nogin, N. and Razavi, F. (2016), “The definition of torque in systems of grease with conical clearance”, Journal of Mechanical Engineering NTUU Kyiv Polytechnic Institute. Vol. 3, no 78, pp. 41-45, DOI:



How to Cite

F. Razavi and O. Koval, “Peculiarities of physical modeling of hydrodynamics of flow in conical slide bearings”, Mech. Adv. Technol., no. 1(82), pp. 51–57, May 2018.



Original study